Demi Lovato has completed her stint in rehab

The 18-year-old singer-and-actress left an unnamed clinic in Illinois today (January 28) after successfully being treated for "emotional and physical issues."

According to gossip website TMZ, Demi – who entered rehab voluntarily at the beginning of November last year after an incident in which she punched a backing dancer – wants to focus back into her "regular routine" and spend time with her family and close friends.

The 'Sonny with a Chance' star is also said to be determined to undertake a solo tour this year.

Earlier this month, representatives for Demi reached a settlement with dancer Alex Welch, who allegedly received a black eye when the star attacked her on a plane after believing Alex had complained to management about her.

A new song by the Disney actress called 'Shut Up and Love Me' was recently leaked online, leading fans to believe she was ready to step back into the spotlight.